科研之友
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摘要
Although early transition metals are too reactive to serve as effective combustion catalysts, it has been proposed that combining them with nonmetallic elements may moderate the reactivity and allow them to replace more expensive catalysts. To test this hypothesis, we use ZrO+ as our replacement and compare the reactivity with Pd+, in a synergistic study employing gas-phase guided-ion-beam mass spectroscopy in conjunction with theoretical investigations. The findings reveal similar reactivity patterns for both ethane and propane with the scission of a C-C bond being the primary reaction mechanism for the interaction of both gases with ZrO+ and Pd+. Hydrogen abstraction is also observed with similar branching ratios for both ions. It is proposed that the similar reactivity is due to ZrO+ having molecular orbitals with 4d components that participate in the reaction in a similar way as the 4d orbitals of Pd+.
- 出版日期2011-9-1
